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Ep. 452: Summer Observing Challenges

By on June 2, 2017 in Amateur Astronomy, Observing, Sky Phenomena, Stars

Summer is almost here, and for the northern hemisphere, that means warm nights for observing. But what to observe? We’re here with a list of events and targets for you to enjoy over the summer. Get your calendars handy, and start organizing some events with your friends, and then get out there! We usually record […]

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Ep. 448: Prepping for the Eclipse

By on April 28, 2017 in Astronomy, Our Solar System, Sky Phenomena, Stars

On Monday, August 21, 2017, there’s going to be a total eclipse of the Sun, visible to path that goes right through the middle of the United States. You should be making plans to see this, and we’re here to help you know where to go and what to do. We usually record Astronomy Cast […]

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Ep. 418: Error 418 – I’m a Teapot!

By on June 30, 2016 in Observing, Stars

One of the most familiar asterisms in the night sky is the Teapot, in Sagittarius. Today we’re going to talk about that and have a bonus conversation about Bertrand Russell’s Teapot Argument. Download the show [MP3] | Jump to Shownotes | Jump to Transcript (more…)

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Ep. 406: Stellar Cannibalism

By on March 14, 2016 in Stars

Most of the time stars hang around for billions of years. But the Universe is a big place, and anything that can go wrong, inevitably does. Today we talk about what happens when these stars come together. The outcome is violent, and fortunately for you, also interesting. Download the show [MP3] | Jump to Shownotes […]

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Ep 386: Orbiting Observers

By on October 13, 2015 in Astronomy, Extrasolar Planets, Observing, Our Solar System, Stars

The atmosphere keeps us alive and breathing, but it really sucks for astronomy. Fortunately, humanity has built and launched space telescopes that get above the pesky atmosphere, where the skies are really clear. Let’s take a look at the past, current and future of orbital observation. Download the show [MP3] | Jump to Shownotes | […]

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Ep. 332: Stellar Collisions

By on February 3, 2014 in Stars

Out here in the Milky Way’s suburbs, stellar collisions are unheard of. But there are places in the galaxy where stars whiz past each other, and collisions can happen. When stars collide, it’s a catastrophic event, and the stellar wreckage is visible half a galaxy away. Download the show [MP3] | Jump to Shownotes | […]

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Ep. 325: Cold Fusion

By on December 18, 2013 in Physics, Stars

The Universe is filled with hot fusion, in the cores of stars. And scientists have even been able to replicate this stellar process in expensive experiments. But wouldn’t it be amazing if you could produce energy from fusion without all that equipment, and high temperatures and pressures? Pons and Fleischmann announced exactly that back in […]

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Ep. 324: Sun Grazers

By on December 9, 2013 in Astronomy, Our Solar System, Stars

Comets can spend billions of years out in the Oort Cloud, and then a few brief moments of terror orbiting the Sun. These are the sun grazers. Some survive their journey, and flare up to become the brightest comets in history. Others won’t survive their first, and only encounter with the Sun. (more…)

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Ep. 322: SOHO

By on November 25, 2013 in Stars

As we’ve mentioned before, the Sun is a terrifying ball of plasma. It’s a good thing we’re keeping an eye on it. And that eye is the Solar and Heliospheric Observatory, or SOHO. Operating for more than 18 years now, SOHO has been making detailed observations of the Sun’s activity though an almost entire solar […]

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